Hi and welcome to JA. I am Ray and will be the expert helping you tonight.
Here your next option might be a local lawyer here in Austin to write the ACC threatening a defamation
suit and invasion of your privacy if they do not quit disclosing this information.
Normally former employers disclose only your job title
and time of employment.This is reasonable and keeps them from being sued.I think a threat here from a local lawyer might be enough to get them to seal their files or at least not give out the internal affairs investigation.
They are in my mind risking a suit from you which is your last resort.
They are in effect blackballing you from any law enforcement job.To me this goes beyond what an employer should be disclosing.It is worth a lawyer letter here to see if you can put a halt to the disclosure.
You want an employment lawyer, you can locate one here.
I think there is hope here to get these guys to back off. It may well be that once their lawyers sees what they have done they agree to end this disclosure of the internal affairs investigation.
I have been successful in similar circumstances involving law enforcement terminations.
Otherwise you have to consider a lawsuit to force the issue.
I appreciate the chance to help you tonight.Pleas let me know if you have more follow up.Thanks again.